DE1238072B - Schichtfoermiger Magnetspeicher - Google Patents

Schichtfoermiger Magnetspeicher

Info

Publication number
DE1238072B
DE1238072B DEA45235A DEA0045235A DE1238072B DE 1238072 B DE1238072 B DE 1238072B DE A45235 A DEA45235 A DE A45235A DE A0045235 A DEA0045235 A DE A0045235A DE 1238072 B DE1238072 B DE 1238072B
Authority
DE
Germany
Prior art keywords
magnetizable
magnetic
layer
chromium dioxide
layered magnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DEA45235A
Other languages
German (de)
English (en)
Inventor
Dr Wolfgang Eichler
Dr Wilhelm Abeck
Dr Franz Hund
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert NV
Original Assignee
Agfa AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agfa AG filed Critical Agfa AG
Priority to DEA45235A priority Critical patent/DE1238072B/de
Priority to NL6408523A priority patent/NL6408523A/xx
Priority to CH971264A priority patent/CH455072A/de
Priority to GB30924/64A priority patent/GB1077843A/en
Priority to BE651612D priority patent/BE651612A/xx
Priority to FR984811A priority patent/FR1404166A/fr
Publication of DE1238072B publication Critical patent/DE1238072B/de
Priority to US727096A priority patent/US3507694A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70636—CrO2
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
    • G11B5/7021—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent containing a polyurethane or a polyisocyanate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/17—Molding a foam containing a filler
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31609—Particulate metal or metal compound-containing

Landscapes

  • Paints Or Removers (AREA)
DEA45235A 1964-02-14 1964-02-14 Schichtfoermiger Magnetspeicher Pending DE1238072B (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DEA45235A DE1238072B (de) 1964-02-14 1964-02-14 Schichtfoermiger Magnetspeicher
NL6408523A NL6408523A (en:Method) 1964-02-14 1964-07-24
CH971264A CH455072A (de) 1964-02-14 1964-07-24 Schichtförmiger Magnetspeicher
GB30924/64A GB1077843A (en) 1964-02-14 1964-08-04 Magnetic recording tape
BE651612D BE651612A (en:Method) 1964-02-14 1964-08-10
FR984811A FR1404166A (fr) 1964-02-14 1964-08-11 Bande d'enregistrement magnétique
US727096A US3507694A (en) 1964-02-14 1968-05-02 Magnetic recording tape containing a polyurethane binder for the ferromagnetic component thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA45235A DE1238072B (de) 1964-02-14 1964-02-14 Schichtfoermiger Magnetspeicher

Publications (1)

Publication Number Publication Date
DE1238072B true DE1238072B (de) 1967-04-06

Family

ID=6934609

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA45235A Pending DE1238072B (de) 1964-02-14 1964-02-14 Schichtfoermiger Magnetspeicher

Country Status (6)

Country Link
US (1) US3507694A (en:Method)
BE (1) BE651612A (en:Method)
CH (1) CH455072A (en:Method)
DE (1) DE1238072B (en:Method)
GB (1) GB1077843A (en:Method)
NL (1) NL6408523A (en:Method)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926826A (en) * 1973-06-18 1975-12-16 Du Pont Magnetic tape binder from a polyurethane, a polyol and an isocyanate
US3941911A (en) * 1973-11-19 1976-03-02 Graham Magnetics Incorporated Thermally resistant magnetic tape
US4292261A (en) * 1976-06-30 1981-09-29 Japan Synthetic Rubber Company Limited Pressure sensitive conductor and method of manufacturing the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE814225C (de) * 1948-11-30 1951-09-20 Bayer Ag Tontraeger

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3034988A (en) * 1958-08-22 1962-05-15 Du Pont Modified chromium oxide ferromagnetic compositions, their preparation and use
US3074778A (en) * 1959-09-24 1963-01-22 Du Pont Process for producing ferromagnetic chromium oxide
NL257041A (en:Method) * 1959-10-22
US2956955A (en) * 1960-02-12 1960-10-18 Du Pont Ferromagnetic chromium oxide and method of making
DE1130612B (de) * 1961-01-03 1962-05-30 Agfa Ag Verfahren zur Herstellung von schichtfoermigen Magnetspeichern fuer Schall-, Bild- und Impulsaufzeichnung
NL277788A (en:Method) * 1961-04-28 1900-01-01
US3243260A (en) * 1961-06-12 1966-03-29 Matsushita Electric Industrial Co Ltd Method for preparing cro2 of rutile type crystalline structure
US3109749A (en) * 1961-12-11 1963-11-05 Ibm Wear resistant magnetic recording media
US3216846A (en) * 1963-01-21 1965-11-09 Gevaert Photo Prod Nv Process for producing a magnetic recording material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE814225C (de) * 1948-11-30 1951-09-20 Bayer Ag Tontraeger

Also Published As

Publication number Publication date
US3507694A (en) 1970-04-21
BE651612A (en:Method) 1965-02-10
NL6408523A (en:Method) 1965-08-16
CH455072A (de) 1968-04-30
GB1077843A (en) 1967-08-02

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